Hello sarahv and welcome,
Could you please provide some additional information as follows:
"Hello, I have been able to send emails but not recive them. Emails sent to me come back not deliverable."
1. Are you referring to your Comcast Business Class Portal Webmail address? If not could you please provide the actual email address?
2. Can you send to your current email address that you are referring to above?
Thank you much and look forward to hearing from you.
Hello again sarahv,
It does not appear that your email domain is hosted by Comcast per the following:
|CNAME||No CNAME record found.|
|PTR||No PTR record found.|
1 7200 900 1209600 86400
Apparently your domain is currently being hosted by AMAZON. If you want to rectify your issue then Use your existing domain name with Comcast Business email and web hosting and follow all of these instructions. You should also consider using the Manage Services.Email.View DNS Info for the required MX, NS, CNAM, PTR records that are required.
Hope this help you out.